I have a nice little hill that I have to climb to get home from all of my rides (the ones I start from home, anyways). I am guessing about 0.2 miles long. I don't know the grade (probably around 10%), but even in the granny gear, it is a fairly tough climb, at least for me. The only thing that sucks is that I have to climb it to get home, so if I have tired legs it is even harder to climb than it would otherwise be. The nice thing about it is that it goes through a park like setting with a stream at the bottom.
I suppose if I get to the point where I can handle this one without any problem, that I can just do it twice. Or go up the other side

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I still find this one a challenge, but there are other less steep and shorter hills that I can just power my way over now that I used to have to downshift for.